Merge branch 'hruska-bugfix-#7624-precache' into devel

conf/cron/mentat-precache-py.cron

@@ -10,5 +10,5 @@
 # Use of this source is governed by the MIT license, see LICENSE file.
 #
 
-# Run once in every 10 minutes.
-*/10 * * * *   mentat /var/mentat/venv/bin/mentat-precache.py --regular
+# Run every hour at minute 3.
+3 * * * *   mentat /var/mentat/venv/bin/mentat-precache.py --regular

conf/scripts/maintenance-mode.sh

@@ -39,7 +39,6 @@ function maintenance_on() {
     systemctl restart apache2
     mentat-controller.py --command disable
     mentat-controller.py --command stop
-    systemctl restart postgresql
     exit 0
 }
 
@@ -53,7 +52,6 @@ function maintenance_off() {
     echo "#==============================================================================#"
     echo "  Current time: `date --rfc-3339=second`"
     echo ""
-    systemctl restart postgresql
     mentat-controller.py --command start
     mentat-controller.py --command enable
     a2dismod substitute